Wrench.



' G. A. SODERHOLM.

WRENCH.

APPLICATION FILED 1 .23.24, 1911.

- Patented Apr. 9, 1912.

2 SHEETS-SHEBT 1.

, o. A. SODERHOLM- I y y WRENCH. v v j APPLICATION PI LBD 11.24, 19 1. 1,022,892. i Patented Apr. 9, 1912.

2 slums-ME cam. A. SODERHOLM, or CHICAGO, I LLINoI s.

wmics.

' Specification of Letters men.

Application filed April 24, 1911. Serial llTo. 622,893.

To all whom it mag concern:

Be it known that I, CARL A. SoDERHoLM, a citizen of Sweden, residing at Chicago, in the county of Cook and Stateof Illinois, have invented certain new and useful Improvements in \Vrenches, of which the following is a specification.

This invention relates to improvements in wrenches and its object is to produce a wrench that. is capable of being locked in any adjusted position; the particular con struction of the wrench is such as to permit its use in positions ordinarily difficult of access byia wrench.

Other objects are general durability and efliciency. 1

Vith the foregoing and other objects in view the invention consists in the combination and arrangement of parts to be hereinthe movable jaw in action.

after fullydescribed in the following specification, pointed out in the claims and illustrated in the accompanying drawings which form a part of said specification and in whichv Figure 1 is a side elevation of the wrench. Fig. 2 is an elevation of the wrench turned to a position at right angles to that shown in Fig. 1, Fig: 3 isa section taken on line 33 of Fig. 2. 'Fig. 4, is a transverse section through one of the'jaw's of the wrench and through one looking member, taken on line 4% of Fig. Fig. -5 is a detailltaken on line 5--5 of Fig. 3. Fig. 6 is a section taken on line 6-6 of Fig. 3.

Like reference characters indicate corres sponding .parts throughout the several views. 5

' My wrench comprises a stationary jaw 1 which terminates at one extremity in a handle 2' by which the wrench is manipulated and at. the opposite end inan enlarged portion or head 3. Amovablejaw l tapered toward. one extremity is secured by a pin 5 extending through this tapered portion to a metallic piece (5 whose opposite extremity,

is secured by a screw 7 to the stationary jaw. The tapered extremity of the movable jaw is beveled and rests upon an inclined shoulder 7 formed in the stationary jaw to afford a bearing for the aforesaid movable jaw. Ears 8 which are lateral prolongations of the metallic piece 6 extend alongside thejaw 1 and serve as-guides for portion or head 9 is made integral with a transverse jaw 10 which'is provided with a An enlarged Patented'iipri9.121% f shoulder i and is pivotally. secured between a pair .Of r

pivot ears 1-1 one on either side oft the n ovg able jaw et at its upper terminatiombetween which the-body of tliis nember is recessed.- to provide a clearance fortheshoulder; a pivot pin 12. The inner longitudinal"surface of the transverse jawisserrated. asat 13tl1rough the greatergportion of its length and the said jaw projects through an. aperture 14 in the stationary and is gpro vided near its free extremity,witha.pin 15' running transversely thercthroughto prevent the saidaw being entirely withdrawn from engagement withtl e said stationary jaw. A hollow jacket IGQis slidably; ar-

ranged on the stationaryjaw below. the re ccss 14in said jaw and provided withan.

extension 17 for the retention, normally,

of one end of a spring 18 the opposite end of which is secured by a screw 19 to the inner face of the jaw.v

A' suitable. block within the jacke t. 16, upon a pivot21 the extremitiesofavhich are mounted inthe 20 is 'pivr'itally arranged walls of theaforesaidjacket,landwadapted to rest normally aga nst thmfth9 CQIit $uIfface of the stationary-jaw ofthe i serve as a seat for a thumb scrc-w threaded andsccured in threads ture in a block 23-secured wi 16 by pins 24; the thumb s furthersupported by an ape d support 25'secured to the afor'esaid block 23 a suitable screw 26. The upper surface of the block 23 projects beyond the jacket and serrated for normal engagement with" the serrations ofthetransverse jaw 10 while the lower termination oi the said block serves as an abutment for one. extremity ofa coil spring 27 arranged upon apeg 28gmade Jingintegral with a transverse p1ece29 tlia t is I .mortised in the stationaryjaw 1. I The purpose of the spring 27'. is to keepthei-serrations of the block 23 normallyenmeshed; with those of the transverse .jaw.10 thus holding thejaws ofthe wrench in locked position and exerting astrain onthe jacket 16, through the medium of the block 23, that will tend to move it toward the jaw 10.

It will be seen .that the block 23 .with spring 27 constitute a jaw locking member so that when engaged with the serrations 13 of the jaw 1 they hold the two aws l and 1 relatively stationary, and thus afford a means for. ocking the wrench in the adjust jaw 10, the thumb-screw 22 is rotated against the block 20 which will draw the jacket 16 in a direction away from the movable jaw 4 against the tension of the spring 18 until the serrations of the block 23 and jaw 10 will mesh when the two jaws 1 and 4 will be locked in their relative positions.

What I claim is:

1. A wrench comprising a stationary jaw provided with a handle and terminating at one extremity in an apertured head, a movable jaw secured to the stationary jaw, a transverse serrated jaw connected to said movable jaw and adapted for engagement with the apertured head of the aforesaid stationary aw, a head madeintegral with the said transverse jaw and means for locking the transverse jaw in adjusted position.

2. A wrench comprising a stationa jaw provided with a handle and terminating at one extremity in an apertured head, a movable jaw secured to the stationary jaw, a transverse serrated jaw connected to said movable jaw for engagement with the apertured head of the aforesaid stationary jaw, a head'made integral with the said transverse jaw, a spring actuated jacket arranged on the aforesaid stationary jaw and a serrated block seated in and projecting beyond said jacket for engagement with the transverse jaw.

3. A wrench comprising a stationa jaw provided with a handle and terminat ng at one extremity in an apertured head, a movable jaw secured to the said stationary jaw, a transverse serrated jaw connected to said movable jaw and adapted for engagement with the apertured head of the aforesaid stationary aw, a head made integral with the said transverse jaw, a jacket having a forward prolongation slidably arranged on the said stationary jaw, a spring secured to the said jaw for engagement with the said jacket prolongation, a serrated block secured in said jacket and projecting thcrebeyond, a spring arranged below the jacket for engagement with the said serrated block and means for moving the said jacket against the tension of the spring engaging its forward projection.

4. A wrench comprising a stationary jaw provided with a handle and terminating at one extremity in an apcrturcd head, a movable jaw secured to said stationary jaw, a-

gagement wit-h the said serrated block and .a thumb-screw piercing the said serrated block for engagement witlr the said pivoted block. a

A wrench comprising a stationary jaw formed with an inclined shoulder, provided with a handle and terminating at one extremity in an aperturcd head, a movable jaw secured to the said stationary jaw and having a bearing upon the inclined shoulder of the said jaw, a transverse serrated jaw connected to the said movable jaw and adapted for engagement with the apertured head of the aforesaid stationary jaw, a head made integral with the said transverse jaw, a jacket having a forward prolongation slidably arranged on the said stationary jaw, a spring secured to the said jaw for engagement with the said jacket prolongation, a serrated block secured in said jacket and projecting thcrcbcyond, aspring arranged below the jacket for engagement with the said serrated block and means for moving the said jacket against the tension of the spring engaging its forward projection. In testimony that I claim the foregoing as my own I have hereto afiixcd my signature in the presence of two subscribing witnesses.

CARL A. SODERl-IOLM.

Witnesses P. G. BALDWIN,

GEO. W. Gama as. 

